Pipe-stock.



A. GORDON.

PIPE STOCK.

APPLIOATION FILED 00123, 1912.

w w K ARTHUR GORDON, OF CHICAGO, ILLINOIS.

PIPE-STOCK.

Specification of Letters Patent.

Application led October 3, 1912.

llatented Dec. 9, 1913.

Serial No. 723,705.

T0 all 'whomz't may concern Be it known that I, Amir-rui: GORDON, a subject. of the Czar of Russia, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pipe-Stocks, of which the following is a specification.

This invention relates more particularly to pipe stocks which are used Jfor holding; dies for threading pipe, rods or the like. In cutting threads on pipe or rods it is usually or always necessary to provide a sutlicient amount of oil 'for the cutting die, in order to cut the threads properly. llVith ordinary stocks, as heretofore constructed, it is necessary to 'frequently stop the cutting' operation and inject enough oil or other suitable liquid into the stock to lubricate the die, this operation being often repeated many times in cutting an ordinary thread. The oil is usually squirted into the die by means of an oil can, the stock being provided with a hole for inserting the spout of the oil can.

The principal object of my invention is to provide a pipe stock which is supplied with an oil reservoir for supplying oil to the die; another object being to provide means for regulating the feed of the oil supply, and other objects relate to the particular teatures of construct-ion which will be described hereinafter.

In the accompanying drawings illustrating my invention; Figure 1 is a longitudinal sectional view of my improved pipe stock; Fig. 2 is a cross sectional view of the same; Fig. 3 is a plan view, parts being broken away to show the interior eonstructiom In the preferred form of my invention I construct the pipe stock in substantially the same form and manner as such devices have heretofore been constructed, but arrange the body portion with a suitable oil chamber' which preferably surrounds the central dieholding part thereof. As shown in the drawings, L represents the body. portion of my improved pipe stock which is provided with the usual cylindrical ends 5, for engagement with the handles 6. The body is cored out or formed with a chamber 7 having; the same general outline as the periphery of the body and inclosing a rectangular chamber formeel by the inner walls 8. This chamber is divided into 'front and rear por tions by an inwardly extendingflange 9. The front port-ion is arranged to receive the die which is merely indicated by the dotted line 10. The die is locked in position by the usual plate or cover 11. The rear chamber 19. is partially closed at the back by means of an inwardly extending wall which terminates in the usual pipe guide Vith the exception of the continuous flange 9, the interior construction and die holding' portion is substantially the same as in ordinary forms of stocks. Oil may be inserted in the chamber 7 through an opening' 14 provided with a stop or closure 15. v

In order to collect the oil and direct it into thc die for the threading' operation, I provide a novel feedingapparatus particularly shown in Figs, 1 and 3. This consists of a pocket or chamber 16 which is adapted to collect the oil and direct it to a hole 17 in a valve 18, the outlet from this valve beine; through a pipe 19 which leads through the wall 8 into the chamber 12, preferably just behind the ilange 9. The valve 18 is provided with a thumb screw 20 for stopping or regulatinathe flow of oil through the pipe 19. The casing; in the valve may be arranged in any desired manner so that these parts may be conveniently assembled.

Thilo I prefer to have as much of the device inade as integrally as possible. the pocket or receptacle 1G may be attached to a pIun 21 which is screwed or otherwise fitted in the bottom of the tubular portion 5 or the body portion may be otherwise arranged to permit the insertion of these parts.

The stoel( is ordinarily turned clock-wise and it. will be readily seen that as it is turned, the oil will flow into the pocket or receptacle 1G, when this receptacle is at the lower-most point, and will be collected therein and directed to the hole 17 when the bottom of the pocket or receptacle becomes suiliciently elevated to cause the oil to flow toward the hole. The oil flows through the valve 18 and tube 19 into the pipo adjacent to the die where it is most needed. The chamber 12 furnishes an auxiliary recep taclc which will confine the oil to a certain extent so that. little or none will be wasted. It will be readily seen that each time the pipe stock makes a complete rotation a given amount of oil will be supplied to the pipe so that the operator will not need to stop operations in order to `furnish oil to the die.

Having thus described my invention intermittently from said chamber to the die or pipe by the turning o f the stock.

2. valve stock having av chamber surrounding the central die holding portion, a

cup arranged in said chamber for collecting.

the oil Vby the turning of the stock, a pipe leading from said cup to the die and a valve for controlling the HOW of oil from the cup through the pipe.

3. `The combination with a pipe stock or the like having an oil supply chamber, of a receptacle arranged in said chamber for collecting the oil by the turning of the stock, and a valve for directing the oil from said chamber to the threading die.

4. A device of the character set forth having a Central chamber through Which a pipe or rod to be threaded may extend, an inwardly extending liange in said chamber dividing the Same into front and rear portions, the front portion serving to receive the die, and the rear portion servinguas-an oil Well, an oil supply chamber surrounding said central chamber, a cup or pocket lixed in said oil supply chamber land having its open portion toward the direction of rotation of the device, a pipe leading from said pocket to the oil Well, and means for controlling the ow of oil through said pipe.

ARTHUR GORDON.

Witnesses SAMUEL NEWBURGER, SAMUEL K. SHUTAN.

Copies of this paient may begobtained forve centseach, by addressing/the Commissioner of Patents, WashingtomD. C. 

